This is the problem any time an industry gets big enough to control legislature in Congress. It's happened in finance and it's happening in agriculture. Practices that are most likely detrimental to the long term health of the population continue apace because it makes someone a lot of money. Changing that at the governmental level is almost impossible, not to be all cynical and jaded. The American consumer has long decided they were only going to choose on price and it's a lot cheaper to have agriculture in the state it is than to fix it.

What you can do is shop locally, start a garden, support local farmers, start hunting and fishing, etc. Is it harder and more expensive? Yup but that seems to be the state of affairs we find ourselves in. On the upside, growing food in a garden is extremely fulfilling.